tldr/pages/common/pnmscalefixed.md

pnmscalefixed

Scale a PNM file quickly with possibly reduced quality. See also: pamscale. More information: https://netpbm.sourceforge.net/doc/pnmscalefixed.html.

• Scale an image such that the result has the specified dimensions:

pnmscalefixed {{[-w|-width]}} {{width}} {{[-h|-height]}} {{height}} {{path/to/input.pnm}} > {{path/to/output.pnm}}

• Scale an image such that the result has the specified width, keeping the aspect ratio:

pnmscalefixed {{[-w|-width]}} {{width}} {{path/to/input.pnm}} > {{path/to/output.pnm}}

• Scale an image such that its width and height is changed by the specified factors:

pnmscalefixed {{[-xsc|-xscale]}} {{x_factor}} {{[-ysc|-yscale]}} {{y_factor}} {{path/to/input.pnm}} > {{path/to/output.pnm}}